spine_analyze_json

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description fully discloses the read-only nature and the scope of inspection. It could mention permissions or output details, but for a simple read-only tool, the transparency is sufficient.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise: two sentences with zero waste. The first sentence immediately states purpose and scope; the second provides negative constraints. No redundant information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema or annotations, the description is nearly complete. It explains what the tool inspects, when to use it, and when not to. A slight gap is the lack of explicit mention about the return format, but 'list' implies output is a list.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The single parameter (jsonPath) has 100% schema coverage. The description adds value by explaining the tool's purpose and context of use (before generating keyframes), enhancing the meaning beyond the schema's description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states 'Read-only Spine JSON inspection tool' and lists specific elements to inspect (metadata, bones, slots, etc.), distinguishing itself from sibling tools by explicitly stating what it does not do.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit when-to-use context ('before generating animation keyframes') and explicit when-not-to-use conditions ('Do not use it to modify files, call Spine CLI, export, import, or automate the Spine UI'), offering clear guidance on alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.